Expandable atherectomy burr and method of ablating an occlusion

Details Expandable atherectomy burr and method of ablating an occlusion Expandable atherectomy burr and method of ablating an occlusion

1998-10-23

2000-08-01

Smith, Jeffrey A.

Surgery

Instruments

Cutting, puncturing or piercing

606180, A61B 1732

Patent

active

06096054&

ABSTRACT:
An atherectomy burr has an operating diameter that is larger than the diameter of a catheter in which the burr is routed. The burr may include a polymeric balloon that is coated with an abrasive and that expands when the burr is rotated. Alternatively, the burr may include a polymeric tube that is coated with an abrasive and secured to the proximal end of the burr. When the burr is rotated, the polymeric tube expands by centrifugal force. Alternatively, the burr may comprise a metallic strip wound over a mandrel. When the strip is tightly coiled to the mandrel, its outer diameter decreases. The outer diameter of the burr increases as the metallic strip expands. In addition, the burr can be formed as a wire spring wound over a drive tube. The distal end of the spring is coupled to a nose cone that can move within a distal lumen in the drive tube. The maximum expansion of the burr is controlled by the distance that the nose cone can be retracted into the lumen. In addition, the present invention includes a burr having an indexable outer diameter. Various indexing mechanisms are disclosed for selectively increasing or decreasing the distance between a proximal and distal end of the burr. As the length of the burr changes, the outer diameter of a number of cutting blades is changed to allow a physician to create different sized lumens in a patient's vessel.

REFERENCES:
patent: Re33569 (1991-04-01), Gifford, III et al.
patent: 2701559 (1955-02-01), Cooper
patent: 3614953 (1971-10-01), Moss
patent: 3896815 (1975-07-01), Fettel et al.
patent: 4273128 (1981-06-01), Lary
patent: 4465072 (1984-08-01), Taheri
patent: 4589412 (1986-05-01), Kensey
patent: 4631052 (1986-12-01), Kensey
patent: 4653496 (1987-03-01), Bundy et al.
patent: 4685458 (1987-08-01), Leckrone
patent: 4696667 (1987-09-01), Masch
patent: 4728319 (1988-03-01), Masch
patent: 4747821 (1988-05-01), Kensey et al.
patent: 4765332 (1988-08-01), Fischell et al.
patent: 4781186 (1988-11-01), Simpson et al.
patent: 4784636 (1988-11-01), Rydell
patent: 4794928 (1989-01-01), Kletschka
patent: 4794931 (1989-01-01), Yock
patent: 4857045 (1989-08-01), Rydell
patent: 4886061 (1989-12-01), Fischell et al.
patent: 4898574 (1990-02-01), Uchiyama et al.
patent: 4921484 (1990-05-01), Hillstead
patent: 4926858 (1990-05-01), Gifford, III et al.
patent: 4950238 (1990-08-01), Sullivan
patent: 4966604 (1990-10-01), Reiss
patent: 5030201 (1991-07-01), Palestrant
patent: 5100425 (1992-03-01), Fischell et al.
patent: 5154724 (1992-10-01), Andrews
patent: 5158564 (1992-10-01), Schnepp-Pesch et al.
patent: 5176693 (1993-01-01), Pannek, Jr.
patent: 5192291 (1993-03-01), Pannek, Jr.
patent: 5217474 (1993-06-01), Zacca et al.
patent: 5224945 (1993-07-01), Pannek, Jr.
patent: 5250060 (1993-10-01), Carbo et al.
patent: 5308354 (1994-05-01), Zacca et al.
patent: 5312427 (1994-05-01), Shturman
patent: 5314438 (1994-05-01), Shturman
patent: 5318576 (1994-06-01), Plassche, Jr. et al.
patent: 5336234 (1994-08-01), Vigil et al.
patent: 5356418 (1994-10-01), Shturman
patent: 5360432 (1994-11-01), Shturman
patent: 5376100 (1994-12-01), Lefebvre
patent: 5385311 (1995-01-01), Morikawa et al.
patent: 5395311 (1995-03-01), Andrews
patent: 5402790 (1995-04-01), Jang et al.
patent: 5490859 (1996-02-01), Mische et al.
patent: 5554163 (1996-09-01), Shturman
patent: 5556405 (1996-09-01), Lary
patent: 5556408 (1996-09-01), Farhat
patent: 5569276 (1996-10-01), Jang et al.
patent: 5571086 (1996-11-01), Kaplan et al.
patent: 5571122 (1996-11-01), Kelly et al.
patent: 5616149 (1997-04-01), Barath
patent: 5649941 (1997-07-01), Lary
patent: 5653696 (1997-08-01), Shiber
patent: 5681336 (1997-10-01), Clement et al.
patent: 5697944 (1997-12-01), Lary
patent: 5725543 (1998-03-01), Redha
patent: 5725568 (1998-03-01), Hastings
patent: 5728123 (1998-03-01), Lemelson et al.
patent: 5749914 (1998-05-01), Janssen
patent: 5766192 (1998-06-01), Zacca
patent: 5792158 (1998-08-01), Lary
patent: 5836957 (1998-11-01), Schulz et al.
patent: 5842479 (1998-12-01), Plaia et al.
patent: 5868708 (1999-02-01), Hart et al.
patent: 5897566 (1999-04-01), Shturman et al.
patent: 5897567 (1999-04-01), Ressemann et al.
patent: 5902263 (1999-05-01), Patterson
patent: 5919200 (1999-07-01), Stambaugh et al.
patent: B14842579 (1995-10-01), Shiber
patent: B14990134 (1996-11-01), Auth
PCT International Search Report, Int'l Publication No. WO 99/44513, International Publication Date: Sep. 10, 1999.

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